Writing implement with cartridge



Feb. 15, 1966 G. GIGLI WRITING IMPLEMENT wITH CARTRIDGE Filed Jan. 6,1964 INVENTOR. 622: [1'0 6792;

United States Patent 3,234,918 WRITING lMiLEMENT WITH CARTRIDGE GiulioGigli, Milan, Italy, assignor to L. & C. Hardtmuth, Inc, Bloomsbury,N.J., a corporation of New Jersey Filed Jan. 6, 1964, Ser. No. 335,729 1Claim. (Cl. 120-454) This invention relates generally to writingimplements provided with means for supplying writing fluid to thewriting instrumentality, such as to the nib of the writing implement,and particularly refers to writing implements provided with replaceableink-carrying cartridges and to the latters construction, function andcooperation with a writing implement to which it is applied.

As is well known in the art, there have been in use writing implementswith ink-holding, replaceable cartridges and with refillableink-containers, such as resilient, compressible ink-holding bags orpiston-operated pump type devices, both of which latter types beingnormally known as fountain pens.

The present disclosure deals with writing implements specificallydesigned for the removable reception of inkliolding cartridges and thelatters structural arrangement and co-function with the writingimplement associated therewith.

The principal object of the present invention therefore is the provisionof a specifically constructed writing implement for the removablereception of a specifically constructed ink-holding cartridge and therespective cooperation of the two items.

Another object of this disclosure is the provision of an ink-holdingcartridge so constructed as to provide a flow of ink to the nib of awriting implement when secured to the latter, but when not so secured tobe readily portable and dry.

The foregoing and other important objects of the present invention willbecome more fully apparent from the ensuing description, in conjunctionwith the accompanying drawing, which latter, while disclosing a specificembodiment of the present invention, is by no means intended to limitthe present disclosure to the specific structure illustrated, since inthe course of production changes and improvements may become necessary,without departing from the principle of this invention.

In the drawing:

FIGURE 1 represents an exploded illustration of the cartridge structure,according to the present invention;

FIGURE 2 is a vertical cross section through the assembled cartridge;and

FIGURE 3 is writing implement, partly in section, and an ink-carryingcartridge, showing the cooperation of the two items.

As disclosed in FIGURES 1 and 2, the cartridge body It, being preferablycylindrical and tubular, has one closed end. 11, while its other end 12is open and recessed at 13 and terminates in an annular flange 14, whichis recessed at 15.

An inlay or insent 16, having a closed end 17 and an open end 18 with anannular flange 19 is intended to be permanently associated with recessedportion 13 of the open end 12 of the cartridge body 10' so that itsflange 19 is seated in the recess 15 of flange 14.

From closed end 17 of inlay 16 extends outwardly a tubular projection20, open at the juncture with closed end 17 of inlay 16 and normallyclosed at its other end 21.

When the cartridge 16 is filled with ink to approximately a point justbelow the interior end of recess 13, inlay 16 is inserted into thecartridge and flange 19 of inlay 16 is permanently seal-joined (notshown) with recessed flange 14 of the cartridge.

Projection 20 is designed to accommodate a mobile, cylindrical piercingmember 22 so that its sharp or cutting end 23 normally rests againstclosed end 21 of projection 29, while its other end protrudes beyond theopen end of the projection.

Referring now to FIGURE 3, there will be seen a writing implement 24provided with a tubular writing nib 25. In the direction opposite to nib25 there will be noted a central body extension 26, provided with athrough passage 2 7 for supplying ink to the nib through the body of theimplement.

At the largest portion of the implement body there is provided anannular abutment 28 adapted to provide a seat for joined flanges 14 and19 of the cartridge and the inlay 16, respectively. A clamping ring 29,which is internally threaded and is adapted to engage an externallythreaded portion provided at the body of the writing implement. Thisclamping ring is designed to press the joint flanges of the cartridgeand of the inlay against abutment 28 of the writing implement so as toprovide a leakproof joint.

it will be noted that when the cartridge is secured to the writingimplement, the end of piercing member 22 protruding from projection 2i?is forcibly engaged by central extension 26 of the implement body, thusforcing the sharp end 23 of the piercing member to cut the lattersnormally closed end 21, thereby providing communication between thecartridge and the tubular nib 25 by way of through passage 27 in centralextension 26; thus ink can now flow from the cartridge to the nib.

As becomes evident from the foregoing, tubular piercing member 22 ismobile within projection 20, and therefore can be moved by centralextension 2;; to cut closed end 21 of the projection as the cartridge isbeing attached to the writing implement by means of clamping ring 29.

The illustrations and their description deal with the present preferredform of this invention, but, as stated previously, its structure mayhave to be altered, for instance, for more eflicient production; suchalterations are deemed to reside within the scope of the annexed claim.

What is claimed as new is:

In a writing implement having a writing nib, a screw threaded portionand central body extension with a through passage for delivering ink tothe nib, an ink-carrying cartridge removably associated with saidimplement and positioned to receive said body extension, said cartridgecomprising a hollow structure closed at one end and recessed at its openend and having a peripheral recessed flange at its extreme open end, aninlay within the recessed end of the cartridge structure and having anopen end provided with a peripheral flange and a closed end extendinginto the cartridge structure, the flange of the inlay resting in therecess of the cartridge flange, the flange of the inlay beingpermanently associated with the recess of the cartridge flange when thecartridge flange is filled with fluid, a tubular projection extendingfrom the closed end of the inlay into the cartridge and being open atthe closed end of the inlay and being closed at its other end, a mobiletubular piercing member frictionally held within said projection andhaving a sharp interior end adjacent to the closed end of the projectionand extending with its other end beyond the open end of said projection,but below said annular flange so that its ex- J: 4. tending end can beforcibly engaged by the central body References Cited by the Examinerextension of the writing implement, a clamping ring hav- UNITED STATESPATENTS ing an annular shoulder therein adapted to engage against theperipheral flange of the hollow structure, said ring 1449234 3/1923Laffin 120-454 1,671,125 5/1928 Pollock 12045.4

g a threaded p m p e to tb f y engage 5 1,724,106 8/1929 Pollock thescrew threaded portion of said writmg lmplement to fasten said cartridgeto said implement and thereby caus- F REI N PATENTS ing the sharpinterior end of the piercing member to pene- 577 918 7/ 1958 Italy,

trate the closed end of the tubular projection, thus enabling fluid topass from the cartridge to the nib of the 10 EUGENE CAPOZIO, PnmaryExamine"- writing implement. LAWRENCE CHARLES, Examiner.

